Earth Science Flashcards

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1
Q

Mineral

A

A naturally occurring inorganic substance

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2
Q

Lithosphere

A

The crust of the Earth

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3
Q

Magma

A

Hot fluid which is found within the crust of the earth

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4
Q

Sediments

A

matter that is transported with erosion

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5
Q

Lava

A

hot molten that spurts out of volcanoes

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6
Q

Abrasive

A

A substance or material able to polish a surface by rubbing against it

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7
Q

Batholiths

A

A very large igneous intrusion extending to through the Earth’s crust

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8
Q

Intrusive

A

An igneous rock which solidify’s under the Earth’s crust

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9
Q

Extrusive

A

An igneous rock which solidify’s when it spurts out of a volcano when it is airborne or when it has made contact with the ground

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10
Q

Igneous

A

A rock which is solidified from Lava or magma

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11
Q

Lustre

A

How reflective a light is on a mineral

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12
Q

Moh’s scale

A

Moh’s scale is the Hardness of a mineral

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13
Q

Streak

A

The colour of a mineral

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14
Q

Sedimentary rock

A

Sedimentary rocks are rocks which were formed over time and due to erosion went around as particles.

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15
Q

Sandstone

A

Sandstone is formed from sand

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16
Q

Shale

A

Shale is formed from mud

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17
Q

Conglomerate

A

Conglomerate is formed from a combinations of rocks

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18
Q

Mudstone

A

Mudstone is formed from mud

19
Q

Siltstone

A

Siltstone is formed from silt

20
Q

Floodplains

A

Sediments which were deposited beside rivers after a river bank had broke.

21
Q

Moraines

A

Moraines are deposits of Glaciers

22
Q

Glaciers

A

Large bodies of ice

23
Q

Erosion

A

Erosion is the movement of sediments

24
Q

Sedimentary rocks

A

Sedimentary rocks are rocks which were sediments of

rocks which broke down.

25
Q

Mineral ores

A

rocks which have mineral embedded in them.

26
Q

Mining

A

extracting natural rocks and minerals from the Earth

27
Q

Environmental

A

the study of effect on the environment

28
Q

Rehabilitated

A

restore

29
Q

Impact statement

A

study of effects on the environment

30
Q

overburden

A

Waste rock

31
Q

open cut-mining

A

mining which involves removing the top soil of dirt and soil to find minerals

32
Q

underground mining

A

Mining underground using shafts

33
Q

Stone Age

A

the time beginning about two million years ago during which early humans made implements of stone

34
Q

alloy

A

a mixture of a metal with a non-metal or another metal

35
Q

flint

A

a fine-grained sedimentary rock which leaves a very sharp edge when broken

36
Q

percussion flaking

A

a process in which tool stones such as flint or obsidian were struck with harder stones, such as quartzite, to shear large flakes that could be used to make small tools

37
Q

palaeontologists

A

a scientist who studies fossils

38
Q

relative age

A

the age of a rock compared with the age of another rock

39
Q

carnivores

A

animal that eats other animals

40
Q

scavengers

A

animals that eat dead plant and animal material

41
Q

mould

A

cavity in a rock that shows the shape of the hard parts of an organism; types of fungi found growing on the surface of foods

42
Q

trace fossils

A

fossils that provide evidence, such as footprints, that an organism was present when the rock was formed

43
Q

extinct

A

describes volcanoes that are no longer active. Extinct volcanoes have not erupted for thousands of years and show no sign of future eruption.